http://terminology.hl7.org/CodeSystem/v3-EquipmentAlertLevel|2018-08-12

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  "publisher" : "HL7, Inc",
  "content" : "complete",
  "name" : "v3.EquipmentAlertLevel",
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  "resourceType" : "CodeSystem",
  "title" : "v3 Code System EquipmentAlertLevel",
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    "system" : "urn:ietf:rfc:3986"
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    "code" : "C",
    "display" : "Critical",
    "definition" : "Shut Down, Fix Problem and Re-init"
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    "definition" : "No Corrective Action Needed"
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